Help me update Modern!!11

[Dankoo]

I'm trying to update my REV 191 in parts, 'cause 240 is too buggy yet

So, I'm trying to make as players can't leave, join or be kicked from a guild while online

I've replaced

/trunk/system/application/controllers/guilds.php
/trunk/system/application/models/guilds_model.php

But when I join a guild it leads to a blank page, or to this:

A Database Error Occurred
Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '` WHERE `id` = '22' AND `online` = 0' at line 1

SELECT `1 FROM `players` WHERE `id` = '22' AND `online` = 0

What should I do to update it properly?